<!doctype html>
<html>

    <head>
    </head>

    <body>
        <button onclick="play && play()">Play</button>
    </body>

    <script src="https://unpkg.com/babel-polyfill@6.8.0/dist/polyfill.js"></script>

    <script src="../build/main.js"></script>
    <script src="./main.js"></script>

</html>
